A point-of-use catalytic oxidation system, for treatment of a VOC-containing gas stream, including: a heat exchanger for heat exchange of a VOC-containing gas stream and a VOC-reduced gas stream at higher temperature than the VOC-containing gas stream, for heat recovery from the VOC-reduced gas stream...http://www.google.de/patents/US5914091?utm_source=gb-gplus-sharePatent US5914091 - Point-of-use catalytic oxidation apparatus and method for treatment of voc-containing gas streams
